22012402 has 16 divisors (see below), whose sum is σ = 33730560. Its totient is φ = 10771488.

The previous prime is 22012391. The next prime is 22012411. The reversal of 22012402 is 20421022.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19518 + ... + 20614.

It is an arithmetic number, because the mean of its divisors is an integer number (2108160).

Almost surely, 2^22012402 is an apocalyptic number.

22012402 is a deficient number, since it is larger than the sum of its proper divisors (11718158).

22012402 is a wasteful number, since it uses less digits than its factorization.

22012402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1305.

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 22012402 is about 4691.7376311981. The cubic root of 22012402 is about 280.2565760410.

Adding to 22012402 its reverse (20421022), we get a palindrome (42433424).

The spelling of 22012402 in words is "twenty-two million, twelve thousand, four hundred two".